Answer Choices
a criticism of a scientific model to a new theory.
a description of a recorded event to its likely cause.
the use of ice core samples to a new method of measuring sulfates.
the use of radiocarbon dating to an examination of volcanic glass.
Explanation for Question 43 From the Reading Section on the Official Sat Practice Test 4
Question 43 says over the course of the passage, 2 the focus shifts from what, to what? 3 So in this case, since it's saying over the course of the passage, 4 we know that the ideas that the focus is shifting between are going to 5 be kind of blanket general statements about sections 6 or segments of the passage. 7 So the first thing I want to do is look into the first paragraph 8 that kind of gives us an introduction to the information that is going to 9 be presented in the passage. And we can kind of get an idea of 10 the ideas that it's going to be shifting between in this 11 paragraph. So it says about 750 years ago, 12 a powerful volcano erupted somewhere on earth, 13 kicking off a centuries long, cold snap known as the little ice age. 14 So we have the idea of cause and effect. 15 So cause and effect right here in the first paragraph, 16 this powerful volcano eruption is causing the effect of the 17 little ice age. 18 And then it goes on to say identifying the volcano responsible has been tricky. 19 So we can see this kind of idea 20 pro progression of ideas, where they're going to talk about how this volcano 21 kicked off the little ice age and then how they went about identifying that 22 volcano and how that was maybe a little dicey. 23 And you can see that these first two paragraphs, 24 they talk about how the I 25 Sage occurred and kind of like the characteristics, 26 the description, stuff like that. So this is the ice age. 27 And then you can see in the following ...